| Literature DB >> 17110696 |
E Andre1, M Xu, D Yang, J K Siow, T T Yeo, Y Xu, C C T Lim.
Abstract
We describe MR spectroscopy in 2 patients with frontal sinus mucoceles that showed a dominant metabolite peak at 2.0-ppm chemical shift, simulating N-acetylaspartate (NAA) of normal neuronal tissue. In vitro analysis of postsurgical mucocele samples confirmed that the signal at 2.0 ppm was arising from the methyl moiety of an N-acetyl compound. This is probably caused by N-acetylgalactosamine or N-acetylglucosamine, which are glycoproteins found in normal respiratory mucus produced by the paranasal sinus epithelium.Entities:
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Year: 2006 PMID： 17110696 PMCID： PMC7977234
Source DB: PubMed Journal: AJNR Am J Neuroradiol ISSN： 0195-6108 Impact factor: 3.825